I purchased my Duracell Group 34 Battery approximately 5 years ago. It performed exactly as expected. I'll be replacing it with an AGM unit but I can't complain about the performance. I would give it 4 stars for performance but 5 stars for value.

This review is of Sam's club's installation of batteries. Which when asked over the phone, they definitely say they will install the battery. My vehicle has a protective brace that protects the battery in a crash, held in place by three bolts. My vehicle has a battery securing system, held in place by one bolt. Sam's auto battery installers: are not permitted to loosen or remove any bolts in the battery replacement procedure.

This battery is only 4 years old and will not hold charge if vehicle sits for more that a week without running.

Bought this Battery in Sept 2012, worked ok until today. It now will no longer operate under a load, so its totally useless!